CHEM 123 Lab Final UBC with Questions and Answers

CHEM 123 Lab Final UBC with Questions and Answers graduated cylinder ANSWER used for general measuring of liquids (not used for quantitative analysis, as it isn't very precise) buret ANSWER - graduated glass tube with a tap at one end and is used for delivering known volumes of a liquid (good for titrations) - long, graduated, glass tube with stopcock at lowered end and has a tapered glass tip volumetric pipette ANSWER - good for extremely precise measurements - bulb is used to draw liquid up into the pipette to the calibration line serological pipette ANSWER - delivers solution in 1mL increments (total volume is 10mL) - last drop in tip must be blown out top loading balance ANSWER - used to weigh a sample where a high degree of accuracy is not needed analytical balance ANSWER - used for analytical work and weighs samples very accurately (to 4 decimal places) hot plate ANSWER used to heat solutions and helps to dissolve solids